Beating and mixing device



1948- w. J.- DUVALL ETAL 2,448,174

HEATING AND MIXING DEVICE Filed Feb. 18, 1946 V) E R D R O C M C M HWALTER -J. DUVALL INVENTORS p TTORNEv Patented Aug. 31, 1948 BEATING ANDMIXING Davies f Walter J. Duvall and Hawaii! Cordrey,

. Chula Vista, Calif.v

Application February 18, 1946; serial No 648 265 '6 Claims. (Cl. 259144)- This invention relates 'to a beating and mixing device utilizableto beat and mix a great variety ofsubstances, but more particularlyintended for use in beating or mixing liquid, semi-liquid and pastyedibles and substances, such as eggs and cake batters; 1 v Among theobjects of the invention are: to pro vide a beatin and mixingappliancewhich the user can operate in a less tiresome manner; toprovide a device which will insure a more complete and thorough beatingand mixing of the entire quantity of the substance being operated uponwhen such a substance is contained in'a suitable open-topped dish orlike container; and to providea manually operable beater or mixer ofsimplified-construction and capable of being more easily assembled. i

Other objects, advantages, and features ofinvention willhereinafterappear.

Referring to the accompanying drawing, which illustrates what isat'present deemed to be a preferred embodiment of the invention,

- Fig. 1 is a side elevation of the complete device.

shaft which rotatably supports them, portions of said shaft being brokenaway in order to contract the length of the view.

Referring in detail to the drawin to the one end of the shaft 1 issecured a heater frame having, thegene'ral designation 9. Said beaterframe comprises two approximately twin beater members l0 and H,thebeater element I0 being separately shown in Fig. 3. I

Describing in detailthe beater member 10, said member Consists of twotwin blade portions l2 which are" secured together at one end of themember I0 by ashortrun l3 of the sheet metal out of which this part ofthe structure is stamped by a'suitable die; "At the inner edge of saidrun 13 an apertured ear [4 is provided which serves to attach the outerend portion of the member I0 to the outer end of the shaft 1. At theopposite end' of the member ID, the two twin portions thereof are unitedby means of a cross r'un l5, which is provided with an apertured' ear l6through whichpasses the shaft I. 1

' The only diiference between the beater members l0 and II is that themember In is a little shorter than the member I l. The lettering of thestructural details of these two members is there- 2 fore the same in thedrawing except that the two Wings of the beater member H are letteredIla, its outer'ear is lettered Ma and its inner ear is lettered Hid. p

The outer end of the shaft 1 terminates in a diametrically reducedportion I! of sufficient length to receive the superimposed ear I 4 and[4a and also a washer l8 which overlies said ears and beyond which'thediametrically reduced part I! is peened over soas to hold said washer inplace, care bein taken to provide sufficient space to render the beatingelements freely rotatable upon the shaft 1. 'At the inner end of thebeating member the ears I6 and Ilia are overlapped as best shown in Fig.4, the shaft! passing loosely through them. 1 Describing more in detailthe shape of the beater members, each of them is first stamped out ofthe sheet of metal so that its outer outline is ovoidal in shape, aconsiderable portion of metal being at the same time stamped out fromthe inside of this ovoidal outline, but not so much metal being removedfrom the inside part but that a considerable width of blade will beprovided at each side of an intervening open space for liquid-beingbeaten to surge through. By preference andas shown, a wavy outline isgiven to the inner edge of the two curved blades thus provided, thisshape better adapting the device to agitate the semi-liquid or pastymaterials 0perated upon; 'After' the first stampin operation has beenperformed, each of the two beater mem-' be'rs is subjected to a bendingoperation whereby each member is bent to the shape shown in the drawing.In addition to the feature already mentioned regarding the stampingoperation, it is to be noted that each wing is so cut out as toprovide-each of its wings with outer notches 20, 20aand inner-notches2i, and 2 la. 1

The device is completed by providing the floating rings 22 and 23 shownin Figs. 1 and 2. The outer ring 22 may-originally be stamped out fromapiece of fiat sheet metal, but if so is thereafter subjected-t0 asecond stamping or bending operationtogive it adished' shape. With thisouter ring cooperates the'inner ring 23 which is of larger diameter butis only slightly dished. These rings 22 and 23 are respectively looselyfitted within notches provided for them in the beater, as shown in Fig.1, each-of the ring-receiving notches which have been described beingcon-' vided. The rings when mounted in the slots should be of at leastas great diameter as the part of the beating structure upon which theyare mounted, but they may be of a. slightly greater diameter, as shownin regard to the ring 22. After the device has been assembled saidrings, though they both float freely in the n OtChes provided for them,cannot be accidentally detached from the beater frame.

In mounting the rings-22 and llmuponztheixrotary frame 9", owing to thelarger. end of the ovoida] frame being adjacent to the outer end of theshaft I, the outer ears l4 and Ma are moved inwardly beyond theirnormaloverlapped relation, thus contracting the outer end portion of theframe sufficiently to allow therings to: girdle the frame as a whole andseat within the notches 20 and 21 provided for them.. Thereupon theframe is placed upon the handle as shown in Figs. 1 and 4 and said earsare fastened in place upon the handle, and by preventing theframerfromcollapsing keep. the rings in their operative positions;

In the operationof. the device the material to be treated is preferablyplaced in a circular crock or similar container. Then the-operatorgrasps the-handleportion-of the device andzby. imparting theretoagyratory movement-.moves the rotary beating frame around the bottom.portion of thecrock until the desired mixing; and beating hasbeeneffected. When the device'is thus 01)- erated'the rollingcontact of therings22 and 23 against. the'crock' insures the. rotation of theblade-carrying frame. which, in turn, efficiently agitates and. whipsthe edible substance being mixed. It will beseen that the rings 22 and23 are spaced considerably apart lengthwiseof the frame-9-andserve aswheels tocause the bladecarry-ing frame -to-turn.

It-isstobenot'edthat the device-is'of asimple construction'and that itis not difficult tho-rough- 1y; to cleanall parts thereof. after itsuse.

What is claimed is:

1'. A beater comprising a shaft havinga handle pertionat' one end, and-abeater, frame rotatably mounted upon the opposite'end portion of saidshaft, said beater frame comprisingv a. plurality of: beaterblades whichare peripherally arranged with theirwidths extending radially in respectto thein axisof rotation, each of. said blades having a notch!cutintoits outer edge portion, and. a-ring seated in: said: notches, andby them alone preventedfrom separation from the beating frame,said;ri'ng serving as a wheel'tocause-said frame toi rotate as" thelatter'is given a gyratory-movement': withthe ring in: contact with theinteriorbottom surface'of'a container, said blades being arrangedinpairs, the-members of each pair being circumferentially spaced apartand being united at their ends by short runsof sheet metal carryingapertured ears which rotationally surround the'aforesaid shaft.

2;v beater comprising-a shaft having a handle portion at one end, andaheater frame rotatably mounted upon" the opposite end portion ofi saidshaft, said beater frame; comprising a plurality of beater-blades whichare eripherally arranged; said blades being in pairs, each pairconsistingiof two wings formable from sheet material byv stamping andbending operations, the wings of each blade being integrally united ateach end and having laterally, directed-,1 ears extending fromthe-,parts: that unite them, said 4 ears rotatably connecting the wingsof each blade with said shaft.

3. A beater comprising a shaft havin a handle portion at one end, and abeater frame rotatably mounted upon the opposite end portion of saidshaft, said heater frame comprising a plurality of beater blades whichare peripherally arranged, and two rings carried by and gird'lin-g;said. blades-,- said rings being: considerably spaced apart in relationto the-length of the device and serving as wheels to cause said frame torotate as it is given a gyratory movement with said ringslin contactwith the interior bottom surface of a container, said blades beingarrangedin pairs, the members of each pair being circumferentiallyspaced apart and united at each end by a short run of sheet metal havingan inwardly directed edge portion forming an aperturedtear-rotationallysurrounding the aforesaid shaft.

4-. Abeater, comprising a shafthavinga handle portion at one end, andabeater framerotatably mounted uponltheopposite end portion ofnsaidshaft,- said, beater. frame comprising; a. plurality of beater members,each of said members-consisting of two twin blade portions which; areoutcurved; from said: shaft longitudinallythereof: in an edgewise mannerand which are integrally secured-together at. each-.end of therbeaterframe by a short. run of the-sheet metal "out ofwhich they aremade, and.ears carried by said. short runs, said. ears being rotatably related to,said shaft.

5. Abeater comprising. a shaft havingahandle portion atwonaend, andabeater frame-rotatably. mounted. upon the opposite-end-portion of saidshaft, said heater framecomprisinaaeplum rality of. beater members;eachof. s,aid.members consisting of an integral plate; comprising; twopaired blade portions which areoutcurved 1 from saidshaft.longitudinally, thereof in -an edgewise manner and which are integrallysecured, together. at eachend of the-beaterframe by a short run of. thesheet material out of whichthey'are made, there beingan-lopenspace forliquid being beatento surge throughintervening-between said paired bladeportions and between said short runsof sheet; material,. and. bearing.means carriedby saidshort. runs and. operatively. connected to saidshaft. 1

. 6. In. abeater. frame, a shafthaving ahandle portion, a plurality ofpairs oftwinbeater blades, and means securing said pairs-+01 bladesto'each other circumferentially,spaced apart around-said shaft, theblades of each pair consisting, of anintegral, elongated piece ofv sheetmetalv having at eachend anaperturedproject-ion rotationally to receivesaid shaft, the bladesof eachpair. both. being located at. thesameisideof. said,shaft..

WALTER. J. DUVALL.v

HANCIL C'ORDREY.

REFERENCES, CITED The following-references are of recordzin, the

Bach. Apr. 13, 1937

